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Article Abstract
Purpose: Benign ureteroenteric anastomosis stricture (BUES) is a well-recognized long-term complication following urinary diversion (1). While endourological interventions are often first-line, their success rates are limited (2, 3). Open uretero-ileal reimplantation remains the gold standard but is technically challenging and carries high complication risks (2). Robotic surgery offers a promising alternative with comparable success rates and minimally invasive benefits (4). In addition to the da Vinci® system, several new surgical robotic systems have been developed, demonstrating comparable safety and efficacy (5-7). This study reports our experience with robotic-assisted Boari-flap using the KangDuo-Surgical-Robot-01 (KD-SR-01) System in managing long-segment BUES after radical cystectomy with orthotopic neobladder.
Materials And Methods: A 64-year-old man developed left BUES 2.5 years after robot-assisted radical cystectomy with orthotopic neobladder. After nephrostomy drainage for 6 months, a robotic-assisted Boari-flap was performed using the KD-SR-01 system in the Trendelenburg position. Surgical steps included: neobladder mobilization, distal ureter dissection, neobladder flap creation, ureter-flap anastomosis, and flap tubularization.
Results: Surgery was successful without conversion. The stricture length was 5 cm. The neobladder flap measured 5 × 3 cm (length × width). Operating time was 145 minutes, with 30 mL of blood loss. The nephrostomy tube and double-J stent were removed two months postoperatively. At three-month follow-up, the patient remained asymptomatic with stable serum creatinine. Cine magnetic resonance urography demonstrated normal ureteral peristalsis and ureteral jets. No postoperative complications occurred.
Conclusions: Robotic-assisted Boari-flap after radical cystectomy with orthotopic neobladder is technically feasible. A larger cohort with longer follow-up is necessary to assess its safety and effectiveness.
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| http://dx.doi.org/10.1590/S1677-5538.IBJU.2025.0341 | DOI Listing |
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